forked from KolibriOS/kolibrios
157 lines
2.8 KiB
C
157 lines
2.8 KiB
C
|
/* Reentrant versions of fstat system call. This implementation just
|
||
|
|
calls the fstat system call. */
|
||
|
|
|
||
|
|
#include <reent.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <_syslist.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
|
||
|
|
/* Some targets provides their own versions of these functions. Those
|
||
|
|
targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS. */
|
||
|
|
|
||
|
|
#ifdef _REENT_ONLY
|
||
|
|
#ifndef REENTRANT_SYSCALLS_PROVIDED
|
||
|
|
#define REENTRANT_SYSCALLS_PROVIDED
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef REENTRANT_SYSCALLS_PROVIDED
|
||
|
|
|
||
|
|
int _dummy_fstat_syscalls = 1;
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
/* We use the errno variable used by the system dependent layer. */
|
||
|
|
|
||
|
|
/*
|
||
|
|
FUNCTION
|
||
|
|
<<_fstat_r>>---Reentrant version of fstat
|
||
|
|
|
||
|
|
INDEX
|
||
|
|
_fstat_r
|
||
|
|
|
||
|
|
ANSI_SYNOPSIS
|
||
|
|
#include <reent.h>
|
||
|
|
int _fstat_r(struct _reent *<[ptr]>,
|
||
|
|
int <[fd]>, struct stat *<[pstat]>);
|
||
|
|
|
||
|
|
TRAD_SYNOPSIS
|
||
|
|
#include <reent.h>
|
||
|
|
int _fstat_r(<[ptr]>, <[fd]>, <[pstat]>)
|
||
|
|
struct _reent *<[ptr]>;
|
||
|
|
int <[fd]>;
|
||
|
|
struct stat *<[pstat]>;
|
||
|
|
|
||
|
|
DESCRIPTION
|
||
|
|
This is a reentrant version of <<fstat>>. It
|
||
|
|
takes a pointer to the global data block, which holds
|
||
|
|
<<errno>>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma pack(push, 1)
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
char sec;
|
||
|
|
char min;
|
||
|
|
char hour;
|
||
|
|
char rsv;
|
||
|
|
}detime_t;
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
char day;
|
||
|
|
char month;
|
||
|
|
short year;
|
||
|
|
}dedate_t;
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
unsigned attr;
|
||
|
|
unsigned flags;
|
||
|
|
union
|
||
|
|
{
|
||
|
|
detime_t ctime;
|
||
|
|
unsigned cr_time;
|
||
|
|
};
|
||
|
|
union
|
||
|
|
{
|
||
|
|
dedate_t cdate;
|
||
|
|
unsigned cr_date;
|
||
|
|
};
|
||
|
|
union
|
||
|
|
{
|
||
|
|
detime_t atime;
|
||
|
|
unsigned acc_time;
|
||
|
|
};
|
||
|
|
union
|
||
|
|
{
|
||
|
|
dedate_t adate;
|
||
|
|
unsigned acc_date;
|
||
|
|
};
|
||
|
|
union
|
||
|
|
{
|
||
|
|
detime_t mtime;
|
||
|
|
unsigned mod_time;
|
||
|
|
};
|
||
|
|
union
|
||
|
|
{
|
||
|
|
dedate_t mdate;
|
||
|
|
unsigned mod_date;
|
||
|
|
};
|
||
|
|
unsigned size;
|
||
|
|
unsigned size_high;
|
||
|
|
} FILEINFO;
|
||
|
|
|
||
|
|
#pragma pack(pop)
|
||
|
|
|
||
|
|
extern unsigned __NFiles;
|
||
|
|
|
||
|
|
#define __handle_check( __h, __r ) \
|
||
|
|
if( (__h) < 0 || (__h) > __NFiles ) { \
|
||
|
|
ptr->_errno = EBADF ; \
|
||
|
|
return( __r ); \
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
_fstat_r (ptr, fd, pstat)
|
||
|
|
struct _reent *ptr;
|
||
|
|
int fd;
|
||
|
|
struct stat *pstat;
|
||
|
|
{
|
||
|
|
FILEINFO info;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
__file_handle *fh;
|
||
|
|
|
||
|
|
__handle_check( fd, -1 );
|
||
|
|
|
||
|
|
if (fd < 3)
|
||
|
|
{
|
||
|
|
pstat->st_mode = S_IFCHR;
|
||
|
|
pstat->st_blksize = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
fh = (__file_handle*) __getOSHandle( fd );
|
||
|
|
get_fileinfo(fh->name, &info);
|
||
|
|
|
||
|
|
memset (pstat, 0, sizeof (* pstat));
|
||
|
|
pstat->st_mode = S_IFREG;
|
||
|
|
pstat->st_blksize = 4096;
|
||
|
|
pstat->st_size = info.size;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
_DEFUN (fstat, (fd, pstat),
|
||
|
|
int fd _AND
|
||
|
|
struct stat *pstat)
|
||
|
|
{
|
||
|
|
return _fstat_r (_REENT, fd, pstat);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */
|